Shingle stapling and folding machine



Jan. 6, 1925. 1,522,234

W. FREEGARD ET AL SHINGLE STAFLING AND FOLDING MACHINE ed June 2.1 19236 Sheets-Sheet 1 WITNESSES: m NVENTORS:

./ Marius Emma;

' BYW VTTORNEYS.

1,522,234- w. FREEGARD ET AL v SHINGLE STAPLING AND FOLDING MACHINEFiled June 21, 1925 v 6 Sheets-Sheet 2 MENTOR.- mam fiwgalfl& 177 I @213W1 7 WESSES:

S Dal raw,

NE YS.

I w. FREEGARD ET i-KL )SHINGLE STAPLING AND FOLDING MACHINE Filed June21', 1 e Sheets-Sheet 3 WITNESSES: I N VEN TOR:

g g Wiliiam Ewd a,

TTORNEYS.

Jan.

1,522,234- w. FREEGARD ET AL.

SH'INGLE STAPLING AND FOLDIQJG MACHINE 1923 6 Sheets-Sheet 4 Filed June21 1 WITNESSES:

J. I s, 1925,

v 1,522,234 W. FREEGARD ET AL SHINGLE STAPLING AND FOLDING MACHINE I sSheets-Sheet 6 Filed June 2L 19275 INVENTORS: Wzlhaqn flee ard arms ,8.arrow,

Patented Jan. 6, 1925. v I p H are... WILLIAM rR-nnoer'nn linn MAR rUss.nannow; or sr. tours, Assam n51 TO THE BARBERASPHALTCOMPANY, OEPHILADELPHIA, PENNSYLVANIA, A COR-. PORATION OF WEST VIRGINIA. 1

SHINGLE STAPLING AND FOLDING MACHINE;

Application filed June 21, 1923. Serial No. 646,943.

To all 'zlhom it may concern) Fig-III is an end elevation of the machineBe it known that we, IVILLI M' Fnnnoann as viewed from the right ofFigs. I and II; and ManrUs S. Dannougcitizens of the United portionsthereof being broken away to avoid States, residing at St; Louis, countyof concealment of certain important details; j

5 St. Louis, and Stateof Missourighave invent Fig. IV is an elevation ofthe mechanisnr ed certain new and useful Improvements in for feeding thestrip or ribbon metalfroni'O Shingle stapling and Folding Machines,which the stapled securing clips are fabriwhereof the following is aspecification, refcated. I erence being had to the accompanying draw-Fig. V is an end view of this mechanism i ings. 1 viewed from the leftof Fig. IV;

'chines useful in connection with the manuend of said ribbon feedingmechanism. facture of so-called prepared 'or flexible Fig. VII isadetail view on an enlarged shingles (for example constructedoffeltscale showing the punch and die mechanism 5 saturated withasphaltum or other weatherwhereby the stapled securing clips fare" Ourinvention relates generally to nia- Fig. VI is an elevation of theopposite 65 proof and resistant compounds), and is diformed from themetallic ribbon or strip. j i ii rected, comprehensively speaking,toward Fig. VIII'is an end elevation of the punch' provision of anorganizationcapable of conand die mechanism viewed from the righttinuously fabricating means in the form of :of Fig. VIIQ v stapledmetallic clips whereby the shingles Fig. IX is a detail plan view on anenmay be subsequently secured to thesupportlarge d scale of themechanism whereby the? ing structure ofaroof;'0f attaching the clips"shingles are folded or retroverted afterthe to the Shingles; and ofsubsequently 'foldattachment of the securing clips. v

ing the shingles in such-manner as to-include Fig. X is a sideelevation, of the folding or'overlap the clips so that only endportionsmechanism supra, v

thereof extend or project beyond the shingle Fig. XI is a right hand endView of said. 180- I edges.-

: mechanism. A-further object ot-our invention is to Figs. XII to XVIIIinclusiveare detail afford mechanism or meanswith freely mor views, someof them f 'agmentary in char- 3o ing parts capable of effecting thefolding of actor and others in section, illustratingsurthe shingles, forthe purpose above mencessive stepsin the folding operation, the

tioned, in a stage-wise manner so as to pre-' sectional figures of thegroup being ind'iclude fracture of" the shingle material notcated bycorresponding numer'alsin F igsrIX withstanding complete retroveisionand the andX. v V p :is formation of comparatively sharp creases. Fig.XIX is a perspective view on an on;

One advantage accruing from thisnovcl largedecale showing the details ofoneof 90 procedure being the possibility of dispensthe stapled securingclips. I f .ing with the necessity for application of heat Figs. XX toXXII inclusive show succes- 1 in accomplishing the desired result, andlike sive steps in the course of attaching a secur-J 40 wise of water orother medium for the puring clip to a shingle and the manner in pose ofpreventing sticking or adhesion. which the shingle is thereafter foldedto in-i Other objects'and their attendant advanelude or overlap theclip. I v tages will become readily apparent from the Fig. XXIII is adetail sectional view detailed description which follows of a more orless diagrammatically represented 45 typical embodiment of ourinvention; while taken along the line XXllleXXllI in 1 the appendedclaims define the scope of the Fig. XXII. v invention in so far as itcomes within our It will perhaps facilitate the understandresentknowledge. ing of ourinvention by first describingthe In the drawings,Fig. Ids a plan view of endwhich is to be accomplished hy'the ma- 50shingle stapling and folding machine conchine foianing the subject ofthis applicaveniently illustrating the novei features of tion and Wewill therefore direct attention our invention. Fig. II'is a longitudinthe same.

"firsttoliligs. XIXi XXIIr inclusive of al sectional view of thedrawings. In these figures the shingle designated by the letterlf S?"and the securing clip by the letter C. From examination of Figs. XIX,itwill be noted that the clip C is constructed of strip metal M cut toan appropriate length for the purpose intended and stamped out centrallyas at a-(z and the cut-out portions upset to afford laterally upstandingspurs or prongs 6 constituting what may conveniently be termed a staple.These prongs b, b are spaceda suitable distance apart to engage asubstantial portion of the shingle material between them as will bepresently ex lained. The extremities of the strip if beyond the stapleprongs b are preferably stiffened by longitudinally disposed cnibossingse e. Clips C such as ust described are secured crosswise of the shinglecorners as suggested in Fig. XX, the shingle S being first placed inproper position relative to the prongs b b and-the latter then forcedinto and through the shingle material. The next step in securing theclips C is illustrated in Fig. XXI from which it will be noted that theprongs b?) are deflected preferably outwardly relative to one anotherand clinched against the shingle surface thereby securely fastening theclip (1 to the shingle S. The final step, i. e. the bending back of theshingle corner upon the body of the latter is shown in Figs. XXII,XXIII, the bending being so ordered as to effect a complete retroversionwith the clip O included in the fold thus produced and its ends onlyprojecting beyond the 7 shingle edges.

W'ith this preparatory explanation we will now proceed to describe thedetails of our improved mechanism by which the aforesaid results areaccomplished. Referring first generally to Figs. I, II and III the meanswhereby the shingles S are progressed through the machine arecomprehensively indicated at 1; the mechanism for concurrently feedingthe metal M in strip or ribbon form from which the clips are formed, at2.; the mechanism for fabricating the clips, at 3 and the mechanism bywhich the shi gie corners are subsequently folded at 4.

(/onfining attention for the time being to the progressing means 1, itwill be observed that the same comprises a pair of rolls 5 and 6 whichcooperate to intermittently feed the shingles S forward and between themain draft rolls indicated at 7 and 8. The sur- 7 face of the roll 5 issegmental in form and thus limited in extent to bring about intermittentfeeding of the shingles S, said surface being supported by end webs 9 9counterbalanced as at 10-10 for. stability of motion and secured to ashaft 11 which is journalled in appropriate bearings of the side frames12 and 13 of the structure. In order to insure a firm grip upon theshingles S when the segmental surface of the roll 5 contacts with thesmaller cooperative roll 6,

been coiled in the roll R.

the journal blocks 14 of the latter roll are mounted for verticalmovement in slots afforded by the frames 12 and 13, and are urgedupwardly by helical springs 15, see Fig. II. The roll 8 is for a likereason urged upwardly by a spring 16 against the companion draft roll'7.The several rolls thus far described are driven through the medium of atrain of intermeshing gears and pinions lt', see Fig. I, said train inturn deriving motion from a master gear 18 mounted upon the main shaft19 of the machine. This shaft 19 is driven through a worm gear 20 from apower shaft 21 which has secured to it a pulley 22 for belt connectionwith an electric motor or other prime mover, not shown. In addition tothe rolls 5, 6, 7 and 8 the machine is equipped with an auxiliary pairof draft rolls 23, 24 which serve to draw the shingles S through thefolding mechanism 4, a spring 25 operative upon the lowermost roll 24 ofthe pair functioning to maintain the necessary gripping pressure uponsaid shingles. The auxiliary draft rolls 23, 24, like the others, derivetheir motion from the gear train 17. Suitable clutch mechanism is of c.zrse in practice provided for controlling farting and stopping of themachine, but this may be of any approved standard type, and for thisreason illustration thereof has been omitted from the drawings.

Coming now to the mechanism for feeding the metal M from which the clipsare fabricated, reference is had to Figs. I, II, IV, V, and VI, whereinsaid metal will be observed to be of. narrow ribbon form and I drawnfrom a supply roll indicated at R 111 Fig. II. From this roll R themetallic ribbon is directed between a series. of

straightening rollers 30 journalled for free rotation, between sidemembers 31:31 of a suitable housing secured to an extension of the mainframe 12 of the machine. The rollers 30 are grooved as clearly shown forbetter directional guidance of the ribbon, and the upper ones ofthcseries operate in intervals between the others and are arranged to beadjustably depressed by means of set screws 32 provided for thispurpose. Associated with the rollers 30 is a stop 35 which will yield topermit free forward feed ing of. the metallic ribbon M but functions tocheck any tendency of "the same to move rearward under any springiness,that may be inherent in the same by reason of having The stop or check33 is pivotally hung from a shaft 34 extending between the side members3131 of the roller housing, and urged into engagcment with the ribbon bymeans of a helical tension spring indicated at The ribbon is fedfori'vard, i. in a direction to the left in Figs. II and IV,intermittently by an oscillating arm. 36 ful'crumcd at 3'4" witha pin 41extending through a longit-udinal slot 42 in a block 43 which isslidable along a dovetail guide bar 44. Another pair of links 45 serveto connect the pin 41 with a rocker arm 46 mounted to oscillate on apivot 46 on the block 43, said arm carryin a finger 47 having asharpened edge adapted to grip the ribbon. The grip-- ping action of thefinger 47 is maintained under the influence of a compression spring 48concealed in the block 43 and influential upon the pin 41 and henceindirectly upon the arm 46, said finger being however free bythis-arrangement, to yield during the rearward strokes of the lever 36so as not to induce retrograde motion infthe ribbon at these times. Thusat each operation of the lever 36, a predetermined length of the ribbonM suificient for the production of a clip C is fed forward to the punchand die mechanism 3. The required motion may i be imparted to the lever36 by any approved means, for example, a crank arm such as shown at 50,in Fig. I may be employed for this purpose and connected to the lever bya link 51. In order that the throw of the lever 36 may be varied toalter or to regulate the length of the ribbon fed forward at eachactuation the link 51 is not directly attached to the crank arm but toaplate 51 adjustable longitudinally on said crank arm, a thumb screwbeing provided for fixing the. plate.

in. the desired adjusted positions.

The metallic ribbon M fed as just 'described is advanced to the punchand die mechanism. 3 whose details are best illustratd in Figs. VII andVIII. In the course of its progression, the ribbon M is directedlongitudlnally across a guide plate shown at 55, the same being providedwith suitable over lapping mei'nbers which incidentally prevent lateraldisplacement of the ribbon. This plate is yieldingly supported at thelevel in-- dicated in Figs. VII and VIII by a. plurality of compressionsprings such as shown at 57, the same being anchored for maintenance ofthe proper position in an underlying block 56 rigidly secured 'to theside frame 12 of the machine. Fixed in said block are dies 58, 58bywhich the embossments e, e are set up in the clips 0''? said diesregistering with clearance apertures 60 in the plate 55 as the latter isdepressed in the manner which will be presently explained. The'block56further carries punches 61 which form the cuts a, a. in the clips C anderect therefrom the upstanding project-ions or prongs b, Cooperatingwith the plate 55 and the dies 58 and punches61 is a pressure plate 62carried by a head 63 adjustably setin -a vertically reciprocatory slideblock 64 (see Fig. II). This block 64- is guided in a slide bearing 65surmounted on the frame 12 and in turn connected by means of anadjustable link 66 to an eccentric 67 on the drive shaft 19 to whichreference has previously been made. The head 63 also carries injuxtaposition to the element 62, a plate 70 which is normally presseddownward away from the head 63 by a number of helical compressionspringssuch as indicated at 71, the extent of depression being limited byshouldered screws 72. The plate 70 is apertured as at 7 3 to accommodateupsetting tools 74 which are fixed in said head. The lower ends of thetools 74 are slightly chamfered so as to determine outward deflection ofthe prongs b, 1). upon the descent of the head- 63. The movement of thelate 70is in opposition to a platen block 5 whichlike the block 56 isfixedly secured to the frame 12. For the purpose of cutting awa afinished clip fromthe end of the strip 11 the rear transverse edge 76 ofthe block '75 is sharpened for cooperation after the manner of a shearwith the edge 77 of the block 62. From what has just been disclosed itwill be apparent that a clip C is formed simultaneously, with severanceof one previously formed during each actuation of the head 63.

5. In the course of the operation of the machine the shingle S is placedso that one corner thereof projects beneath the plate 70 and over theprongs b, b of the waiting completely formed clip whichhas not yet beensevered or cut from the ribbon M,so that upon subsequent depressionbfthe head 63 the shingle S is depressed or forced downwardly, causin theprongs b, 7) to penetrate the shingle material. In continued motion ofthe head 63, the tools 7 4 encounter the pro'ecting end of the prongsZ), Z) thereby upsefting them as alreadynn derstood and ,clinching themagainst the face of the shingle S, the plate 70 yielding during thisaction by virtue of interposition of the springs 71. a

The shingle S disposed in a diagonal position with the clip C attachedacross its corner in the manner just explained, is next bodilyadvancedby the intermittent roll couple 5, 6 to the main draft .rolls 7 and 8whereby it is immediately progressed to the folding mechanism 4 Whoseconstruction is bestillustrated in Figs. IX, X and XI. This foldingmechanism includes a frame or housingSO supporting a series of freelyrevolving rollers which cooperate in pairs to'suocesively bend theshingle corner in a stage-wise manner until the same has been completelyfolded or retroverted upon the main or body portion of theshingle; theobject of such successive folding being, as

reviously stated, to prevent fracture. The

rst roll to be encountered is designated at 81 in the drawings, the samebeing mounted upon a horizontal axis 82 and provided at one side with acircumfenential flange 83 which overlaps 'the smaller, cooperating,companion roller 84L as best illustrated in Fig. XI to bend the shinglecorner substantially through an, angle of approximately ninety degrees,the shingle S being at the same time supported through th'e assistanceof aplate 85 fixedly secured in any convenient manner alongside thehousing 80. In being further advanced, the shingle S next encounters asecond pair of horizontally disposed, cooperative rollers 86, 87 thelatter of these rollers being in the form of a comparatively thin diskand supported for free rotation in a longitudinal cleft S8 of the plate'85, The roller 86, as will be best seen from Figs. X and XIII is formedwith an angular peripheral groove which engages the shingle S and bendsthe same. still further about the crease already partially establishedby the rollers 82, 84. In order to facilitate the last described bendingoperation and also the one which is to follow, the plate 85 isappropriately beveled at opposite sides as clearly suggested at 89 seeFigs. IX and XV. -The final stage of bending of the shingle corner iseffected through the cooperation of still another pair of horizontallydisposed, cooperative rollers 90 and 91, of which the former is moresharply grooved than the roller 86 of the previous pair so as todetermine substantiallya full 180 bend as shown in Fig.

. XIV. Theshingle S is next passed between rangement of the several pairof oo-opcra iive rollers. we are enabled to produce a perfect foldthrough successive bendings without causing any break or fracture of theshingle material along the line of creasing, and therefore without inany way marring their strength or appearance. Such folding may moreoverbe readily acolnplished without application of heat, and furthermorewithout the aid of water or other preventative against sticking sincebending is accomplished entirely by aid of freely moving parts.

In feeding the shingles S to the machine,

the latter are initially placed by hand or otherwise, upon a suitablesupport such as shown at 100, sniiiciently flexible to yield the end ofa lever 103 pivoted, for rocking motion, at 104C to a fixed bracketsupported.

by the main frame 12 of the machine. The

opposite extremity of the lever 103 carries a roller 105 designed toengage a disk cam 106 upon the shaft 11 of the progressing roll 5.Consequently, in the course of each rotation of the cam 106, the rollerend of the lever 103 is released, and the stop 1052' thereby retractedfrom the path of the shingle S so that the latter may. be vanced, afterthe application of the clip C thereto, to the main draft rolls 7 and 8and thereby to the folding mechanism 4.

The operation of the device is as follows:

The shingles S are successively placed upon the support 100 in aposition determined by the guide 101 and the stop 102, so that theircorners are properly positioned over the formed clip C not yet cut fromthe end of the ribbon M. Upon subs quent depression of the head 63, theshingle end is forced downward onto the'clip C, the prongs F), F) of thelatter incidentally penetrating the shingle material until engaged bythe upsetting tools 7 whereby they are headed over and clinched and theclip at the same time severed from the strip M as already understood.The timing of the machine is such that immediately upon the applicationof the clip G, the segmental snrface of the roll 5 engages the shingle Sand with the aid of the roll 6 advances the same to the main draft rolls7 and S. CUHPHB'" rently with this action, the ribbon hit is advanced tobring the end portion embossed and punched during the last depression oithe head 0?, into position beneath the plate in preparation forattachment to the next shingle S, which in the-interim is placed inproper position upon the support 100. licturning now to the shingle Swhich has been advanced to the rolls 7 and 8, the same is nextprogressed through the folding mechanism l by the joint cooperation ofthe rolls 7 and S and the auxiliary draft rolls 2 -1 and 24, and therebysuccessively operated upon by the rollers 8l-8%, 86-87, 91, 92-93, 90,ill-95, whereby it is bent and creased as previously explained.

Having thus described ourinvention', we claim:

1. A shingle stapling and folding machine comprising means forfeedingstrip metal thereinto, co-aclive triune means adapted to farbircate asecuring clip while attaching a formed one to an individual shingle andmultaneously severing the same from loo lln

strip metal. and means for progressively retroverting the shingle tipwith the clip adapted to fabricate a securing clip while comprisingmechanism for attaching a formed one to an individual shingle "andsimultaneousl: severing the same from the strip metal, and means forprogressively retroverting the shingle tip with the clip included in thefold and its ends projecting beyond the edges thereof.

3. A shingle stapling and folding machine comprising means forintermittently feeding strip metal thereir-to, co-active triune devicesadapted to fabrisatc a reinforced securing clip \vhilc attaching aformed one to an individual shingle, and simultaneously severing thesame from the strip metal and means for rctrovertiug the shingle tipwith the clip'included in the fold and its ends projecting beyond theedges thereof.

4. A shingle stapling and folding machine intermittently feeding stripmetal thereinto. a triune device adapted to fabricate a reinforcedsecuring clip WllllO attaching a formed one to an individual shingle andsimultaneously severing the same from the strip metal, and

"comprising mechanism I I feeding strip mechanism for progressivelyretroverting the shingle tip with the clip included in the fold and itsends projecting therefrom.

5. A shingle stapling and folding machine for intermittently feedingstrip metal th'ereinto, associated means for preventing retrogrademotion, a

co-active triune device adapted to fabricate a reinforced securing clip\vhile attaching a previously formed one to an individual shingle andsimultaneously severing the same from the strip metal, and mechanism forprogressively retroverting the shingle tip with the clip included in thefold and its ends projected exterior thereof.

6. A shingle stapling and folding machine comprising mechanism forintermittently metal thereinto, 'associated' mechanism for preventingretrograde mo tion of the strip metal, co-active triune mechanismadapted to fabricate a securing clip while attaching a previously formedone to an individual shingle and simultaneousl severing the same fromthe strip metal,

niec ianism for progressively retroverting' the shingle tip with theclip included in the fold, and positively coordinated means forconcurrent actuation of all the aforesaid mechanisms. I

'7. A shingle stapling and folding machine including co-active triunemeans adapted to fabricate securing clips from continuous strip materialautomatically fed thereinto, attaching the fabricatedclips to 8. Ashingle stapling and folding machine including co-active triune meansadapted to successively fabricate securing clips with projecting prongsfrom continuous strip metal, means'for subsequently attaching thefabricated clips individually to prepared shingles by forcing the prongsthrough the shingle. material and clinching them upon the oppositeshinglefaces and means for concurrently. severing each 'attached clipfrom the strip of metal.

9. A shingle stapling and folding machine including coactive triunepunch and die means for fabricating'shinglesecuring clips withprojecting prongs from continuous strip metal, means for subsequentlyattach- .ing the fabricated clips individually to prepared shingles byforcing the prongs through the shingle material and clinching them uponthe opposite shingle faces, and means for concurrently severing eachattached clip from the strip metal.

10. In a shingle stapling and folding machine of the character describedthe combination of co-active triune means for successively forming andsevering securing clips from a continuous strip and'attaching the formedclips at the same time to individual shingles.

11. In a machine of the character described the combinationof co-activemeans for successively, fabricating securing clips 'from continuousstrip metal, and means for.

attaching the clips individually to shingles and incidentally cuttingthem from the strip.

12. In a machine of thecharacter described co-active triune'mea'nsadapted to fabricate securing clips from continuous strip metal, tosever said clips from the strip metal, and incidentally to attach eachsuccessive clip to an combination with means for intermittentlyadvancing the strip metal in increments corresponding to the desiredlength of the clips.

13. In a machine of the character de: scribed, co-active triune meansfor fabricating shingle securing clips from a continuous strip of metalintermittently progressed therethrough including a yieldi gly supportedplate across which the strip travels, fixed punches registering Withcorrespondingly configured apertures in the plate, means cooperatingWiththe plate to cause the punches to penetratethe metallic strip andset up projecting prongs. and means for subsequently severing thecompleted clips thus fo'ri'ned from the strip andcon'currently attachingthemindividually to shingles.

1i. Ina machine of the character described, co-active triune means forfabricating securing clips fromacontinuous strip of metal intermittentlyprogressed there individual shingle, in-

plate, means for cooperating with the plate to simultaneously effectembossment and penetration of the strip by the punches to set upprojecting prongs, and means for subsequently severing the completedclips thus formed from the strip and concurrently attaching themindividually to shingles.

15. In a machine of the character described, the combination ofco-active triune means for fabricating, severing and attachin securincli s with ro'ectin fastenb b I 2':

ing prongs to shingles including a support, said means also including ayieldable pressure device cooperative with the support for forcing theprongs of the clips through the shingle material.

16. In a machine of the character described, the combination of aco-active triune means for fabricating, severing and attaching securingclips with projecting fastening prongs to shingles including a support,said means also including a yieldable member cooperative with thesupport for forcing the prongs through the shingle material, andupsetting tools for clinching the protruding ends of the prongs overupon the opposite faces of the shingle material.

17. In .a machine of the character described, the combination 'of aco-actlve triune 'means for fabricating, severing and attaching securingclips with projecting fastening prongs to shingles including a supportfor the clips, said means also including ayieldable member for pressingthe 40 shingle against the clip in effecting attachment of the latterthrough forced penetr' tion of the prongs into the shingle maaerial.

'- 18. in a machine of the character described, the combination of aco-active triune means for fabricating, severing and attaching securingclips with projecting prongs to shingles including yieldable means forforcing the prongs of the clips through the shingle material, andassociated means for clinching the protruding ends of the prongs overupon the opposite faces of the shingles.

19. In a machine of the character de scribed, the combination of a'co-active 'triune means for fabricating, severing and attaching securingclips with projecting prongs to shingles including a support, a

head movable toward and away from the (it) support, a yieldable platecarried by said tinned movement of the latter to clinch the protrudingends of the prongs orcr upon the shingle surface. i I

20. In a machine of the character de scribed, the combination ofco-actire tri'iuc inc-ans for forming and severing a shingle securingreinforced clip from a continuous strip of metal, characterized by meansfor simultaneously attaching a previously formed clip to a shingle.

21. In a machine of the character described, the combination ofco-active triune means for forming a shingle securing rein forced clipfrom a continuous strip of metal, characterized by means forsimultaneously severing a previously formed clip from the strip whileattaching the same to a shingle.

22. In a machine of the character described, the combination ofco-active triune means for fabricating, severing and at taching securingclips to prepared shingles, and means for progressively bending theshingle tips to effect complete rctroversions with said clips envelopedin the folds thus produced.

23. Ashingle stapling and t'oldiugn'iachiue including means forintern'iittently feeding strip metal thereinto, co-active triunc meansfor fabricating, severing and attaching a securing clip to preparedindividual shingles, and means for folding the shingle tip to includethe clip, said means eompreheml ing a succession of pairs of cooperativerollcrs whereby th folding aforesaid is progressively accomplished untilcomplete retroversion is effected.

2ft. A shingle stapling and folding machine including means forintermittently feeding strip met'al tliercinto, co-active triune meansfor fabricating, severing and at taching a securing clip to preparedindividual shingles, means for folding the shingle tip to include theclip/, said means compre hending a succession of pairs of cooperativerollers whereby the folding aforesaid is pro gressivel'y accomplisheduntil complete 1Gtluversion is effected, and pinch-rolls subsc quentlyoperative against the edges of the folds to insure permanent creasing.

25. A shingle stapling and folding 1nachine including means forintermittently feeding strip metal thereinto, co-a-etive tri une meansfor fabricating, severing and attaching a securing clip to preparedindivid ial shingles, means for folding the shingle tip to include theclip, said latter means comprehending a succession of pairs ofcooperative rollers whereby the folding aforesaid is progressivelyaccomplished until complete retroversion is effected, and spaced pairsof pinch-rollers with an intermediate auxiliary grooved ledger rolleroperative directly against the edges of the folds to airure permanentcreasing.

2t, A shingle stapling and folding marehendin a air of coo erativerollers one with a circumferential flange overlapping the sides of theother whereby a bend of substantially ninety degrees is initiallyproduced, and a succeeding series of rollers co operative in pairs andwith appropriately configured peripheries for interlappnig toeffectfurther bending progressively until complete retroversion isaccomplished,

27. In a machine of the character described, the'combination ofco-active triune means for fabricating, severing and attaching securingclips to prepared shingles, a stop for determining proper positioning ofthe shingles relative to the aforesaid clip means, and means forautomatically withdrawing the stop to permit advancing of the shinglesafter attachment of the clips thereto.

' 28. In a machine of the character described, the combination of aco-act-ive triunc means for fabricating, severing and attaching securingslips to prepared shingles, and a pair of continuously revolving rollersone having but a limited segmental surface for intermittent cooperationwith the companion roll to engage the, shingles successively in removingthem from the means aforesaid after application of the clips.

29. 'A shin le sta lin and foldim mab p D b chine including means formaintaining shingles disposed in a diagonal position during progressionthrough the machine, means positioned at one side of the machine wherebyreinforced securing .clips are simultaneously fabricated, severed andindividually attached crosswise of the corner ofeach successive shingle,and means whereby the same corner and attached clip is subsequently andprogressively bent over upon the body of the shingle to include the clipwithin the resulting folds.

In testimony whereof, we have hereunto signed ournames at Madison,Illinois, this fifteenth day of J am, 1923.

' WILLIAM FREEGARD. MARIUS S. DABROW.

Witnesses:

C. .H. SMITH, v MYRAH. ANDRES-HEIDER.

